B21 Carrabassett Valley Regional Airport in Maine, sometimes known as Sugarloaf Regional. Many buildings are duplicates. Mostly weathered brown wood siding and green A-frame roofs. The fuel farm is new and doesn't appear in the current Google Earth imagery. Great winter destination for ski trips. Challenging approach through high terrain. I've attached some photos for assistance in building type and placement. Would be nice if someone could enhance the default scenery. I would try if I knew how.